I think it just depends on my social situation. A few months ago I would use it daily to talk to people, now there's nobody on there I want to talk to so there's no point.
No, I just tend to straight up download my albums from Mediafire. If you don't want to do that then I have no idea. Maybe Grooveshark? I've only heard of it, but never used it.
Medulla is definitely very different, personally it's my second favourite after Debut.